Registration Dossier
Registration Dossier
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EC number: 608-560-3 | CAS number: 3095-95-2
Stability: thermal, sunlight, metals
Administrative data
- Endpoint:
- stability: thermal, sunlight, metals, other
- Remarks:
- Migrated from section 'Stability: thermal, sunlight, metals'
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The test was performend on the basis of mentioned guidelines with minor modifications. The test was conducted by well experienced staff of a safatey laboratory that routinely conducts this type of testing. Protocols for testing procedure are in place.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- DSC
a) DIN 51005
Thermische Analyse (TA), Begriffe, 8/2005
b) DIN 53765
Prüfung von Kunststoffen und Elastomeren, Thermische Analyse, Dynamische
Differenzkalorimetrie (DDK), 3/1994
c) DIN EN ISO 11357-1
Kunststoffe, Dynamische Differenz-Thermoanalyse (DSC), Teil 1: Allgemeine
Grundlagen, 4/2008
d) ISO 11357-2
Plastics – Differential scanning calorimetry (DSC) – Part 2: Determination of glass
transition temperature, 3/1999
e) ISO 11357-3 AMD 1
Kunststoffe – Dynamische Differenzkalorimetrie (DDK) – Teil 3: Bestimmung der
Schmelz- und Kristallisationstemperatur und der Schmelz- und Kristallisationsenthalpie,
7/2005
f) ISO 11357-4
Kunststoffe – Dynamische Differenz-Thermoanalyse (DSC) – Teil 4: Bestimmung
der spezifischen Wärmekapazität, 9/2005
g) ISO 11357-5
Plastics – Differential scanning calorimetry (DSC) – Part 5: Determination of
characteristic reaction-curve temperatures and times, enthalpy of reaction and
degree of conversion, 12/1999
Zersetzungsprüfung im Reagenzglas
a) VDI 2263, Blatt 1
VDI Richtlinien: Staubbrände und Staubexplosionen, Gefahren – Beurteilung –
Schutzmaßnahmen, Untersuchungsmethoden zur Ermittlung von sicherheitstechnischen
Kenngrößen von Stäuben, 5/1990
Zersetzungsprüfung im Autioklaven
a) Prüfung auf Exothermie und Druckaufbau im geschlossenen Gefäß, Mini-Autoklav,
Fa. Kühner AG, incl. Prüfvorschrift und Beschreibung, www.Kuhner.com
b) VDI 2263, Blatt 1
VDI Richtlinien: Staubbrände und Staubexplosionen, Gefahren – Beurteilung –
Schutzmaßnahmen, Untersuchungsmethoden zur Ermittlung von sicherheitstechnischen
Kenngrößen von Stäuben, 5/1990
c) T. Grewer, Thermal Hazards of Chemical Reactions, Industrial Safety Series,
Volume 4, Elsevier Science B. V., Amsterdam, 1994, S. 138 und 139 - GLP compliance:
- no
Test material
- Reference substance name:
- Diethylphosphonoessigäure
- IUPAC Name:
- Diethylphosphonoessigäure
- Test material form:
- not specified
- Details on test material:
- Diethylphosphonoessigsäure
Molecular Weight = 196,14
Molecular Formula = C6H13O5P
Constituent 1
Results and discussion
For thermal stability study
- Test substance thermally stable:
- yes
Operating temperatureopen allclose all
- Operating temp.:
- > 160 °C
- Remarks on result:
- other: Exothermie bei einer Heizrate von 5°C/min im geschlossenen Edelstahl-Tiegel [Differential-Scanning-Calorimetry]
- Operating temp.:
- > 140 °C
- Remarks on result:
- other: Induction during 24h [Zersetzungsprüfung im offenen Reagenzglas]
- Operating temp.:
- > 70 °C
- Remarks on result:
- other: schwacher Druckaufbau bei einer Heizrate von 0.6°C/min [Zersetzungsprüfung im Autoklaven]
- Operating temp.:
- > 160 °C
- Remarks on result:
- other: sehr startker Druckaufbau bei einer Heizrate von 0.6°C/min [Zersetzungsprüfung im Autoklaven]
- Sublimation:
- not determined
- Transformation products:
- not specified
Applicant's summary and conclusion
- Conclusions:
- Die Maximaltemperatur der Handhabung aus Sicherheitsgründen (TmaxSi) für Diethylphosphonoessigsäure wird mit ca. 80°C/96h festgelegt. Bei tiefen Temperaturen kann die Diethylphosphonoessigsäure erstarren. Die Substanz kann dann für max. 96h bei 80°C aufgeschmolzen werden.
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